SQL Jet Access，插入列和排序依据

Question

我通过excel使用Microsoft.ACE.OLEDB.12.0连接在我的工作簿中进行内部查询。

如何插入Year列与我在查询中的年份并订购它们以便它们不在一起。那么他们会一个接一个地重复？

我添加了Year专栏，但现在订购是问题。

这是我当前的查询

select [Data Type], [Currency], [Book Name], [1987] as Value
from [stage2$]
UNION ALL
select [Data Type], [Currency], [Book Name], [1990]
from [stage2$]

当前数据：

+--------------------------------+----------+-------+---------------+
|           Data Type            | Currency | Name  |   value       |
+--------------------------------+----------+-------+--------------
| Missing Non Historical Results | BSD      | Carib | (279)         |
| Missing Non Historical Results | BSD      | Carib |   18          |
| Missing Non Historical Results | BSD      | Carib |   898         |
| Missing Non Historical Results | BSD      | Carib |  (50)         |
+--------------------------------+----------+-------+---------------+

预期结果：

+--------------------------------+----------+-------+---------------+---------+
|           Data Type            | Currency | Name  | Year          |  value  |
+--------------------------------+----------+-------+---------------+---------+
| Missing Non Historical Results | BSD      | Carib |          1987 |  (279)  |
| Missing Non Historical Results | BSD      | Carib |          1990 |  898    |
| Missing Non Historical Results | BSD      | Carib |          1987 |  18     |
| Missing Non Historical Results | BSD      | Carib |          1990 |  (50)   |
+--------------------------------+----------+-------+---------------+---------+

Answer 1

您可以在select语句中添加另一列：

select [Data Type], [Currency], [Book Name], '1987' as Year, [1987] as Value
from [stage2$]
UNION ALL
select [Data Type], [Currency], [Book Name], '1990' as Year, [1990]
from [stage2$]
order by Year